<!--SIF Implementation Specification 2.2-6 (March 17, 2008)-->
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" targetNamespace="http://www.sifinfo.org/infrastructure/2.x" xmlns:sif="http://www.sifinfo.org/infrastructure/2.x" elementFormDefault="qualified">
  <xs:import namespace="http://www.w3.org/XML/1998/namespace" schemaLocation="imports/xml/xml.xsd" />
  <xs:complexType name="LearningStandardDocumentType">
    <xs:annotation>
      <xs:documentation>
								A curriculum standards document or the like published by a national, state, district, school site, professional association or other interested party. The
								LearningStandardDocument reflects an expectation of student work.
							</xs:documentation>
    </xs:annotation>
    <xs:sequence>
      <xs:element name="Title" minOccurs="0" type="xs:normalizedString">
        <xs:annotation>
          <xs:documentation>Name of standard document, i.e., "Washington Essential Academic Learning Requirements."</xs:documentation>
        </xs:annotation>
      </xs:element>
      <xs:element name="Description" minOccurs="0" nillable="true" type="xs:string">
        <xs:annotation>
          <xs:documentation>Description of the standards document.</xs:documentation>
        </xs:annotation>
      </xs:element>
      <xs:element name="Source" minOccurs="0">
        <xs:annotation>
          <xs:documentation>
								Defines source of standard document.  This is the descriptive type of the organization listed in Organization. It serves to describe the type of the standards contained within the document.
							</xs:documentation>
        </xs:annotation>
        <xs:simpleType>
          <xs:restriction base="xs:token">
            <xs:enumeration value="National" />
            <xs:enumeration value="State" />
            <xs:enumeration value="Regional" />
            <xs:enumeration value="District" />
            <xs:enumeration value="Site" />
            <xs:enumeration value="Classroom" />
          </xs:restriction>
        </xs:simpleType>
      </xs:element>
      <xs:element name="Organizations" minOccurs="0">
        <xs:complexType>
          <xs:sequence>
            <xs:element name="Organization" minOccurs="0" maxOccurs="unbounded" type="xs:normalizedString">
              <xs:annotation>
                <xs:documentation>Name of organization represented by the document, i.e., "National Council of Teachers of Mathematics (NCTM)," "Washington," "Seattle School District."</xs:documentation>
              </xs:annotation>
            </xs:element>
          </xs:sequence>
        </xs:complexType>
      </xs:element>
      <xs:element name="Authors" minOccurs="0" nillable="true">
        <xs:complexType>
          <xs:sequence>
            <xs:element name="Author" minOccurs="0" maxOccurs="unbounded" type="xs:normalizedString">
              <xs:annotation>
                <xs:documentation>Name of the organization that authored the standards document, i.e. "Mid-Continent Research for Education &amp; Learning (McREL)." May be the same as "Organization" above.</xs:documentation>
              </xs:annotation>
            </xs:element>
          </xs:sequence>
        </xs:complexType>
      </xs:element>
      <xs:element name="OrganizationContactPoint" minOccurs="0" nillable="true" type="xs:string">
        <xs:annotation>
          <xs:documentation>A brief description of how to contact the organization maintaining the standards. It could be a phone number, email address, or URL.</xs:documentation>
        </xs:annotation>
      </xs:element>
      <xs:element name="SubjectAreas" minOccurs="0">
        <xs:complexType>
          <xs:sequence>
            <xs:element name="SubjectArea" minOccurs="0" maxOccurs="unbounded" type="sif:SubjectAreaType" />
          </xs:sequence>
        </xs:complexType>
      </xs:element>
      <xs:element name="DocumentStatus" minOccurs="0">
        <xs:simpleType>
          <xs:restriction base="xs:token">
            <xs:enumeration value="Draft" />
            <xs:enumeration value="Adopted" />
            <xs:enumeration value="Archived" />
            <xs:enumeration value="Unknown" />
          </xs:restriction>
        </xs:simpleType>
      </xs:element>
      <xs:element name="DocumentDate" minOccurs="0" nillable="true" type="xs:date">
        <xs:annotation>
          <xs:documentation>The date the current status was achieved.</xs:documentation>
        </xs:annotation>
      </xs:element>
      <xs:element name="LocalAdoptionDate" minOccurs="0" nillable="true" type="xs:date">
        <xs:annotation>
          <xs:documentation>The date the local organization adopted this standard document</xs:documentation>
        </xs:annotation>
      </xs:element>
      <xs:element name="LocalArchiveDate" minOccurs="0" nillable="true" type="xs:date">
        <xs:annotation>
          <xs:documentation>The date the local organization stopped using this standard document and superseded by a new document.</xs:documentation>
        </xs:annotation>
      </xs:element>
      <xs:element name="EndOfLifeDate" minOccurs="0" nillable="true" type="xs:date">
        <xs:annotation>
          <xs:documentation>This is the date that the governing organization retired this document. </xs:documentation>
        </xs:annotation>
      </xs:element>
      <xs:element name="Copyright" minOccurs="0" nillable="true">
        <xs:complexType>
          <xs:sequence>
            <xs:element name="Date" minOccurs="0" nillable="true" type="xs:date">
              <xs:annotation>
                <xs:documentation>Copyright date</xs:documentation>
              </xs:annotation>
            </xs:element>
            <xs:element name="Holder" minOccurs="0" nillable="true" type="xs:normalizedString">
              <xs:annotation>
                <xs:documentation>Name of the copyright holder</xs:documentation>
              </xs:annotation>
            </xs:element>
          </xs:sequence>
        </xs:complexType>
      </xs:element>
      <xs:element name="GradeLevels" minOccurs="0" nillable="true" type="sif:GradeLevelsType">
        <xs:annotation>
          <xs:documentation>SIF common GradeLevels element</xs:documentation>
        </xs:annotation>
      </xs:element>
      <xs:element name="RepositoryDate" minOccurs="0" nillable="true" type="xs:date">
        <xs:annotation>
          <xs:documentation>Date document data was added to the repository</xs:documentation>
        </xs:annotation>
      </xs:element>
      <xs:element name="LearningStandardItemRefId" minOccurs="0" type="sif:IdRefType">
        <xs:annotation>
          <xs:documentation>Link to the first/top LearningStandardItem in the standard hierarchy</xs:documentation>
        </xs:annotation>
      </xs:element>
      <xs:element name="RelatedLearningStandards" minOccurs="0" nillable="true">
        <xs:complexType>
          <xs:sequence>
            <xs:element name="LearningStandardDocumentRefId" minOccurs="0" maxOccurs="unbounded" type="sif:IdRefType">
              <xs:annotation>
                <xs:documentation>Links to related LearningStandardDocument</xs:documentation>
              </xs:annotation>
            </xs:element>
          </xs:sequence>
        </xs:complexType>
      </xs:element>
      <xs:element name="SIF_Metadata" minOccurs="0" nillable="true" type="sif:SIF_MetadataType" />
      <xs:element name="SIF_ExtendedElements" minOccurs="0" nillable="true" type="sif:SIF_ExtendedElementsType" />
    </xs:sequence>
    <xs:attribute name="RefId" use="required" type="sif:RefIdType">
      <xs:annotation>
        <xs:documentation>ID for the standards document</xs:documentation>
      </xs:annotation>
    </xs:attribute>
    <xs:attribute ref="xml:lang" use="required" />
  </xs:complexType>

  <xs:element name="LearningStandardDocument" type="sif:LearningStandardDocumentType" />

</xs:schema>